/*
 * Copyright The OpenTelemetry Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import {
  InMemorySpanExporter,
  ReadableSpan,
} from '@opentelemetry/sdk-trace-base';

const OTEL_TESTING_MEMORY_EXPORTER = Symbol.for(
  'opentelemetry.testing.memory_exporter'
);

type OTelProviderApiGlobal = {
  [OTEL_TESTING_MEMORY_EXPORTER]?: InMemorySpanExporter;
};
const _global = global as OTelProviderApiGlobal;

export const getTestMemoryExporter = (): InMemorySpanExporter | undefined => {
  return _global[OTEL_TESTING_MEMORY_EXPORTER];
};

export const setTestMemoryExporter = (memoryExporter: InMemorySpanExporter) => {
  _global[OTEL_TESTING_MEMORY_EXPORTER] = memoryExporter;
};

export const getTestSpans = (): ReadableSpan[] => {
  return getTestMemoryExporter()!.getFinishedSpans();
};

export const resetMemoryExporter = () => {
  getTestMemoryExporter()?.reset();
};
